Real interpolation method for transfer function approximation of distributed parameter system

Phu Tran Tin, Minh Tran, Le Anh Vu, Nguyen Quang Dung, Tran Thanh Trang

Abstract


Distributed parameter system (DPS) presents one of the most complex systems in the control theory. The transfer function of a DPS possibly contents: rational, nonlinear and irrational components. This thing leads that studies of the transfer function of a DPS are difficult in the time domain and frequency domain. In this paper, a systematic approach is proposed for linearizing DPS. This approach is based on the real interpolation method (RIM) to approximate the transfer function of DPS by rational-order transfer function. The results of the numerical examples show that the method is simple, computationally efficient, and flexible.


Keywords


a distributed parameter system; approximation; real interpolation method;

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DOI: http://dx.doi.org/10.12928/telkomnika.v17i4.11088

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